THE MERCK VETERINARY MANUALmultimedia

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  • Overview of Leptospirosis
  • Leptospira interrogans

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    Leptospira interrogans

    Leptospira interrogans, dark-field microscopy, low power, microscopic agglutination test. The characteristic hooked ends ("question marks" or "interrogation points") that give the species its name are visible in nonagglutinated bacteria.

    Courtesy of the Department of Pathobiology, University of Guelph

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